Stainless steel decorative tube also called stainless steel welded pipe referred to as welded pipe, commonly used in steel or steel strip after the unit and the mold coil forming after welding made of steel. Welding steel pipe production process is simple, the production efficiency is high, the variety of specifications, equipment and less capital, but the general strength is lower than the seamless steel pipe.
With the rapid development of high-quality strip rolling production and progress of welding and testing technology, and constantly improve the weld quality, varieties and specifications of welded steel pipe is increasing, and in more and more fields especially in the heat ex changer tube, decorative tube, etc. in the low-pressure fluid pipe instead of the seamless steel tube.
The use of decorative tube is very wide.Such as Stainless steel window, stainless steel railing, stainless steel stair railing, interior design, etc.The main purpose is used for indoor and outdoor decoration
Commonly available processed grade
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GRADE
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GB/T 1220-2007
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ASTM
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UNS
|
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DIN
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JIS
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KS
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奥氏体不锈钢
（Austenitic）
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12Cr17Mo6Ni5N
|
|
201
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S20100
|
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1.4372
|
|
SUS201
|
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STS201
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06Cr19Ni10
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304
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S30400
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1.4301
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SUS304
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STS304
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022Cr19Ni10
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304L
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S30403
|
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1.4306
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SUS304L
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STS304L
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022Cr17Ni12Mo
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316L
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S31603
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1.4404
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SUS316L
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STS316L
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Chemical composition and Mechanical properties
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牌号
Grade
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C(%)
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Si(%)
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Mn(%)
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P(%)
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S(%)
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Cr(%)
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Ni(%)
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N(%)
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Mo(%)
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奥氏体
Austenitic
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201
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≤0.15
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≤1.00
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5.50-7.50
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≤0.06
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≤0.03
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16.00-18.00
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0.50-1.00
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≤0.25
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-
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304
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≤0.08
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≤1.00
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≤2.00
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≤0.045
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≤0.03
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18.00-20.00
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8.00-10.50
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≤1.00
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-
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304L
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≤0.03
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≤1.00
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≤2.00
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≤0.045
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≤0.03
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18.00-20.00
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8.00-12.00
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≤1.00
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-
|
|
321
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≤0.08
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≤1.00
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≤2.00
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≤0.045
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≤0.03
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17.00-19.00
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9.00-12.00
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≤1.00
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-
|
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316L
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≤0.03
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≤1.00
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≤2.00
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≤0.045
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≤0.03
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16.00-18.00
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10.00-14.00
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≤1.00
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2.00-3.00
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牌号
Grade
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TS
(Mpa)
|
YS
(Mpa)
|
EL
( %)
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Rate of reduction in area
(%)
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Density
(g/cm³）
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Hardness
(HB / HRB / HV)
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奥氏体
Austenitic
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201
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≥520
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≥275
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50-60
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≥60
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7.93
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≤187HB / ≤90HRB / ≤200HV
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304
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515-1035
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≥205
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≥40
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≥60
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7.93
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≤201HBW / ≤92HRB / ≤210HV
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304L
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≥520
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≥205
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≥40
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≥60
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7.93
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≤187HB / ≤90HRB / ≤200HV
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|
316L
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≥480
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≥177
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≥40
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≥60
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7.98
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≤187HB / ≤90HRB / ≤200HV
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